Privacy-Preserving Platoon Velocity Control Considering Inter-Vehicle Distance

There is a growing demand for cyber security measures in vehicle platoon control. The traffic signal control (TSC) system using V2X communications is one environment that necessitates such measures. In the TSC system environment, the information of the platoon can be eavesdropped on by attackers outside the platoon, posing the risk of data spoofing attacks. This study aims to prevent platoon information estimation by external attackers who can eavesdrop on all vehicle information within the platoon in the TSC system. Specifically, we construct a consensus protocol considering velocity control and inter-vehicle distance control to preserve the reference velocity of the platoon.